diff --git a/docs/upload/detail/options.md b/docs/upload/detail/options.md
index 00974de7..590c46ae 100644
--- a/docs/upload/detail/options.md
+++ b/docs/upload/detail/options.md
@@ -74,6 +74,11 @@ data: {
 data: {
   id: function(){
     return $('#id').val();
+  },
+  id2: function(index, file){ // 参数支持。2.9.3+ 
+    // 注：当 unified:true 和 ie8/9 下，参数无效
+    console.log(index); // 得到文件索引
+    console.log(file); // 得到文件对象
   }
 }
 ```
diff --git a/src/modules/upload.js b/src/modules/upload.js
index 24cc9e69..1ec113ff 100644
--- a/src/modules/upload.js
+++ b/src/modules/upload.js
@@ -279,7 +279,9 @@ layui.define(['lay', 'layer'], function(exports){
 
         // 追加额外的参数
         layui.each(options.data, function(key, value){
-          value = typeof value === 'function' ? value() : value;
+          value = typeof value === 'function' 
+            ? sets.unified ? value() : value(sets.index, sets.file)
+            : value;
           formData.append(key, value);
         });